Last updated: August 23, 2025
In December, the average temperature in Pernioe, Finland hovers around -1°C (31°F). Temperatures can dip dramatically, with a minimum of -19°C (-1°F), while reaching a maximum of 7°C (44°F). Expect about 72 mm (2.8 in) of precipitation spread over 15 days, contributing to an average humidity level of 95%. Prepare for a chilly, damp month!
In December in Pernioe, the average temperature is -1°C (31°F). The maximum can reach 7°C (44°F) and the minimum can be as low as -19°C (-1°F). Travelers should prepare for cold weather and dress in layers to stay warm during this chilly month.
In Pernioe in December, the total precipitation amount is 72 mm (2.8 in) over the course of 15 days.
In Pernioe in December, humidity is 95%. With an average temperature of -1°C (31°F), this humidity feels like an icy weight on your skin, making travel uncomfortable and every breath a challenge as the cold dampness clings to your clothes.
In Pernioe in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Pernioe.
UV Risk Categories
Weather in Pernioe varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Pernioe, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 54 mm (2.1 inches) | 97% | low |
| February Weather | -3°C (26°F) | 46 mm (1.8 inches) | 95% | low |
| March Weather | -1°C (31°F) | 50 mm (2.0 inches) | 93% | moderate |
| April Weather | 4°C (39°F) | 37 mm (1.5 inches) | 86% | moderate |
| May Weather | 10°C (50°F) | 51 mm (2.0 inches) | 75% | moderate |
| June Weather | 16°C (61°F) | 50 mm (2.0 inches) | 75% | high |
| July Weather | 18°C (65°F) | 81 mm (3.2 inches) | 80% | high |
| August Weather | 17°C (62°F) | 97 mm (3.8 inches) | 83% | moderate |
| September Weather | 12°C (54°F) | 64 mm (2.5 inches) | 90% | moderate |
| October Weather | 7°C (45°F) | 84 mm (3.3 inches) | 93% | low |
| November Weather | 3°C (38°F) | 60 mm (2.4 inches) | 94% | low |
| December Weather | -1°C (31°F) | 72 mm (2.8 inches) | 95% | low |